Machine for making paper package-fasteners



T. H. KRUEGER.

MACHINE EoA MAAANG PAPER PACKAGE EAsTENEAs.

APPLICATION FILED MAY 31, I9I9- LQQQQ Fadtntedpt. 6, 1921;

9 SHEETS-SHEET l.

T. H. KRUEGER.

MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION F'ILED MAY SI. 1919.

Pmenmdlept 59 192B.

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MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY 3l, 1919.

9 SHEETS-SHEET 3.

T. H. KRUEGER.

MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY 31, 1919.

Patented Sept. 59 IQZII.

`9 SHEETS-SHEET 4.

T. H. KRUEGER.

MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY 31| 1919.

Patented Sept. 69 1921.

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9 SHEETS-SHEET 5.

T. H. KRUEGER. MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY 3l, I9I9.'

Patented Sept. 6, 1921.,

9 SHEETS-SHEET 6 LSQQ.,

T. H. KRUEGER.

MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY 31.71919.

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9 SHEETS-SHEET 7.

T. H. KRUEGER. MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY31, 1919.

9 SHEETS- SHEET 8.

T. H. KRUEGER.

MACHINE FOR MAKING PAPER PACKAGE FASTENERS.

APPLICATION FILED MAY 3l, 1919.

9 SHEETS-SHEET 9.

UNITED STATES PATENT OFFICE.

THEODOBE H. KRUEGER, 0F NEW YORK, N. Y.

Specicatlon of Letters Patent.

Patented Sept. 6, 1921.

Application led May 31, 1919. Serial No. 301,057.

To all whom it may concern:

Be it known that 1, THEoDoRE H. Kapr- GER, a citizen of the UnitedStates, residlng in the city of New York, county of New York, and Stateof New York, have invented certain new and useful Improvements inMachines for Making Paper Package-Fasteners, of which the following is aspecification.

The present invention relates to a machine for manufacturing paperpackage fasteners of that general character which are disclosed inPatent No. 1,210,952 which was granted to me on January 2, 1917, theobject of the invention being to provide a machine of this characterwhich embodies novel features of construction whereby these paperpackage fasteners can be quickly manufactured in large quantities `at acomparatively small cost.

Further objects of the invention are to provide a machine of thischaracter which is entirely automatic in its operation and dischargesthe package fasteners in a completed form ready for use, which is notliable to break or get out of repair, and which is practicallycontinuous in its operation, suitable paper strips being unwound fromrolls and fed into one end of the machine while the finished packagefasteners are discharged from the other end of the machine.

lVith these and other objects in view, the invention consists in certainnovel combinations and arrangements of the parts as will more fullyappear as the description proceeds, the novel features thereof beingpointed out in the appended claims.

For a full understanding of the invention. reference is to be had to thefollowing description and accompanying drawings, in which:

Figure 1 is a side elevation of a machine for manufacturing packagefasteners which is constructed in accordance with the present invention.

Fig. 2 is a top plan view thereof.

Fig. 3 is a detail view of the cutting mechamsm.

Fig. 3a is a detail end view of the cutters and the actuating mechanismtherefor.

Fig. 4 is a similar view of the feeding and slitting mechanism.

Fig. 5 is an enlarged top plan view of the assembling mechanism, partsbeing broken away and shown in section to illustrate more clearly thedetails of construction.

Fig. 6 is a transverse sectional view on the line 6-6 of Fig. 5, lookingin the direction of the arrows, portions being broken away. e0

F ig. 7 is a similar view on the line 7 7 of Fig. 5, portions beingbroken away.

Fig. 8 is a side elevation of the construction shown by Fig. 7, lookingin the direction of the arrow 8 on Fig. 7, and including 65 the springclamping elements in addition to the. arched hood.

Fig. 9 is a transverse sectional view on the line 9-9 of Fig. 5.

F ig. 10 is a bottom plan view of one of 70 the swinging clampingmembers which are provided for carrying the slotted elements of thepackage fasteners.

Fig. 11 is a transverse sectional View through a portion of theassembling mechanism. illustrating the various positions of the. tripelements which control the clamping member.

Fig. 12 is a side elevation of the discharge end of the machine,illustrating the mechanism for taking the finished package fastenersfrom the assembling mechanism and depositing them upon a conveyer beltfastener are brought together in an overlapping and interlockingrelation.

Figs. 20 and 21 are detail views showing the end cams of the assemblingmechanism as developed.

Fig. 22 is a plan view showing the two 10o elements of the packagefastener in the end to end position in which they are initiallydelivered to the assembling mechanism.

Fig. 23 is an edge view of the two elements of the package fastener.

Fig. 24 is a plan view of the finished package fastener as it isdischarged from the machine, the two elements thereof being broughttogether in an overlapping and interlocking relation.

Fig. 25 is a plan view of a portion of the paper blank in the conditionin which it is fed to the cutters, the places at which it will besevered by the cutters being indicated by a dot and dash line.

Corresponding and like parts are referredv to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The package fasteners which are to be manufactured by this machine areof the general type disclosed in my prior Patent No. 1,210,952 ofJanuary 2, 1917, being illustrated by Fi 22, 23 and 24 of the presentdrawings. ach package fastener includes two elements A and B, the innerend of each of the elements being reinforced by a second thickness ofpaper 1 which is secured thereto, while the outer end 2 ofeach` of theVelements A and B is provided with a layer of adhesive which is adaptedto be moistened when ailixing the package fastener to a bundle orpackage. The element B of the package fastener has the sides thereofnotched to provide the laterally projecting wings b, while the element Ahas the inner end thereof slotted at a to interlock with the said wingsb. The package fastener is manufactured and delivered to the consumerwith the T-shaped'head of the element B overlapping and in aninterlocking engagement with the slotted end of the element A, the twoelements A and B being thus locked together so that the package fastenercan be handled as a unit. The

gummed ends 2 of the package fastener can Y be moistened and the devicethen applied to a bundle or package in such a manner as to ,fasten thesame, although the two elements being entirely automatic in itsoperation and requiring but little attention. In 'Figs 1 and y2 of thedrawings, the numeral 5 designates a table upon which the mechanism ismounted, and it is shown as supported in an eleva-ted position by thelegs 6. Arranged under the table is a roll 7 of .comparatively narrowungummed paper, while a roll 8 of wider gummed paper is mounted abovethe table. These rolls 7 and 8 are shown as carried by center rods 9which are received removably in inclined bearing knotches 10 openingthrough the sides of standards 11. Suitable bars 12 are arranged attheends of the rolls 7 and 8 to maintain .them in a properly centeredrelation to the machine, although both rolls are free to rotate as thepaper is unrolled therefrom. The narrow paper strip from the lower roll7 is carried upwardly around a tensioningroller 13 and then rearwardlyinto engagement with a pair of cleaning brushes 14. After being actedupon by the brushes 14 the strip passes through the slotted" ends of ahanger 15` within which a moistening element 16 is arranged. A brush 17rests upon the top of the paper strip so as to force it into engagementwith the moistening element, said brush being carried by a 'swinging arm18 and being normally held yieldably in an operative position by aspring 19. Suitable latch' means 20 may be provided for holding thebrush 17 in an inoperative position when this is necessary for anypurpose. The moistening element 16 is shown as resting within a tray 21,into which water is fed from a bottle or reservoir 22 and maintained ata proper level. The moistened narrow strip 7* extends rearwardly fromthe moistening device arounda guide roller 23 which directs it upwardlyinto engagement with the gummed strip 8a, the latter being drawnrearwardly from the upper roll .8 and passing around a tension roller24. `This tension roller 24 is carried by arms 25 which are pivotedbetween their ends at 26 and engaged at their lower ends by tensionsprings 27. In a similar manner the tensioning roller 13 for the narrowstrip 7 is carried by arms 28 which are acted upon by tension springs29. The gummed upper strip 88L and moistened lower strip 7a are broughtinto contact with each other as they pass between the rear set ofpressure rollers 30. rlhe pressure of these rollers can be regulated inthe usual manner by means of adjusting screws 31, and the rollers serveto force the narrow moistened strip 7a against the middle portion of thewide gummed strip 8a. From the pressure rollers 30 the two strips 71and8a extend forwardly across the top of the table 5, being engaged by asecond set of pressure rollers 32 before reaching thegstamping andcutting mechanism. These' two sets of pressure rollers 30 and 32 willcause the narrow ungummed lower strip 7a which was previously moistenedto-'be securely fastened to the middle of the wide gummed strip 8, theedges of the wide strip 8"L extending laterally upon opposite sides ofthe narrow strip 7a. The adhesive on these projecting edges of the wideupper strip 8 will not come into contact with the narrow strip 7 andwill ac cordingly not be moistened thereby, but will remain intact toform the gummed end portions 2 of the package fastener.

From the second set of pressure rollers 32 the blank paper strip iscarried over the bed 33 of a conventional die press 34. The dies 35 ofthis press operate upon the paper blank in the conventional manner,serving to form triangular openin s for the side notches of the elementsof the package fasteners, and slots for the elements A of the packagefasteners. From the punch press 34 the paper blank passes between feedrollers 36 (see Fig. 4) and thence under a conventional printingmechanism P to the cutting blades 37 and 38. The paper blank has anintermittent feed. and each forward movement is for a distancecorresponding to the width of one of the package fasteners.

A main shaft 39 extends transversely across the top of the punch press34 and is provided at one end with a pulley 40 by means of which powercan be applied thereto. This shaft has a chain and sprocket connection4l with the printing mechanism l?, and is provided with a crank arm 42having a rack 43 pivotally connected thereto. This rack engages a pinion44 which is loose upon one of the feed roller shafts 45 and has a pawland ratchet connection 46 therewith. A roller 47 on a swinging arm 48 isheld in a yielding engagement with the back of the rack 43 by means of aspring 49, and it will be obvious that as the main shaft 39 is rotatedthe rack bar 43 will be reciprocated up and down. Upon the downwardmovement of the rack bar the pawl and ratchet connection 46 will causethe feed roller shafts 45 and feed rollers 36 to be rotated, therebyfeeding the paper blank forward, although upon the upward movement ofthe rack bar 43 the pawl and ratchet connection 46 will permit the inion44 to rotate independently of the eed rollerI shaft- 45. The paper blankwill thus be fed forward with an intermittent movement, each forwardmovement being for a distance equal to the width of a package fastener.While the blank is at rest, between each forward movement thereof, thedies 35 are moved downwardly to stamp the blank, and the printingmechanism P is caused to make an impression upon the blank.

The two feed roller shafts 45 are journaled in a suitable frame 50mounted upon the table 5, and are geared together at their ends, asindicated at 5l, so that the two shafts rotate simultaneously inopposite directions. Mounted upon each of the feed roller shafts 45between the two feed rollers 36 is a rotary shear or slitter 52, thestraight edges of the two cutting disks overlapping and being held in ayielding engagement with each other by means of the springs 53. As thepaper blank is advanced through the feed rollers 36 it is slitlongitudinally at the middle point thereof by the beveled edges of thedisks 52. A portion of the paper blank as it is fed to the cutters 37and 38 is illustrated by Fig. 25. The longitudinal slit 54 at the middleof the blank 1s formed by the cutters 52 as the blank is advancedthrough the feed rollers 36. The triangular openings 55 at one side ofthe slit 54 are formed by one of the die elements 35, while thetransverse slots a at the opposite side of the longitudinal slit 54 areformed by the other die element. As this blank which is illustrated byFig. 25 is advanced step by step to the cutters 37 and 38, it is severedtransversely upon the dotted lines 56. thereby forming the elements Aand B of the package fasteners which are assembled by the mechanismabout to be described. The printing mechanism P may leave any desiredimpression upon the paper blank. such as the legend Open here, indicatedat 57 on Fig. 25.

The upper blade 37 of the cutter is shown as fixed, while the lowerblade 38 is pivoted at one end thereof as indicated at 58. The paperblank is carried between the two cutters 37 and 38 and the swinging endof the pivoted cutter 38 is loosely received within Jthe forked end 59aof an L shaped lever 59, said lever extending rearwardly at one side ofthe table 5 and being pivotally mounted at an intermediate point asindicated at 60. The rear end of the L-shaped lever 59 extends upwardlyand terminates in a shoe 59b which is positioned to be engaged by a cam61 on the main shaft 39. At each revolution of the main shaft 39, andafter the paper blank has been advanced one step forward, the cam 61 ofthe main shaft engages the shoe 59h of the lever 59 and swings the leverto actuate the cutter 38, thereby severing the portion of the blankwhich was advanced through the cutters and forming one element A and oneelement B which are complete in every respect and ready to be assembledin an inter-locking relation to form one of the complete packagefasteners. The swinging end of the pivoted cutter 38 is formed with alaterally projecting trip arm 62. and the middle portion of the cutter38 has a pin and slot connection 63 with a lever 64, said lever beingpivoted at 65 and provided at its free end with a second trip arm 66.When the swinging cutter 38 is moved upwardly to sever the projectingend of the paper blank the trip arms 62 and 66 are simultaneously movedupwardly and 'cause the clamps of the assembling mechanism to engage thesevered portions of the strip.

The assembling mechanism is mounted upon a transverse shaft 67 andreceives an intermittent rotary movement from the main shaft 39. In thepresent instance there are three complete assembling units mounted uponthe shaft 67 and the said shaft 67 is rotated one third of a revolutioneachtl'me the main shaft 39 makes one complete revolution and delivers aair of package fastener elements A and iii to the assembling mechanism.severed from the main strip by the cutter 38 is clamped against a head68 by means of a swinging jaw 69 which is automatlcally released by thetrip arm 66 of the cutting mechanism (see Fig. 11). The swin ing jaw 69is rigid with a longitudinal sha t 70 which extends loosely through arms71 prof jecting laterally from the' clamping head 68 (see Figs. 5 and8). A coil spring 72 surrounds the longitudinal shaft and normally tendsto rotate the same to move the swinging jaw 69 into engagement with theclamping head 68. Rigid with the outer end of the shaft 70 is a bellcrank lever 73 which has one end thereof hooked and arranged tointerlocked with the hooked end 7 4 of a trip lever 74 to lock theswinging jaw 69 in an open and inoperative'position. A spring 75 holdsthe trip lever 74 ieldablyin operative position, and one end of the triplever projects into the path of the trip arm 66 of the cut-tingmechanism when a particular unit of the assembling device is in positionto receive the severed ends of the main blank, When the cutter 38 isactuated the trip arm 62 is moved upwardly and swings the trip lever 74to disengage the hooked arm 74 thereof from the bell crank lever 73. Thespring 72 then swings the jaw 69 into operative position and causes theelement B of the package fastener to be clamped between the clampinghead 68 and the swinging jaw 69. v

The clamping head 68 is pivotally mounted upon a shaft 76 which projectsfrom a hub 77, said sha-ft being arranged in a plane at right angles tothe axis of the main shaft .67 and on the chord of a circle concentricwith the said axis. An arm 78 projects laterally from the pivot end ofthe clamping head 68 and carries a roller 79 which travels along theedge of a cam ring 8O at the end of the assembling mechanism. A coilspring 81 surrounds the shaft 76 and normally tends to swing theclamping head 68 to hold the roller 79 against the edge of the cam ring80. This cam ring 80 is rigidly mounted, and it will accordingly beobvious that the movement of the roller 79 along the high, low, andinclined portions of the cam ring will result in swinging the clampinghead 68 and jaw into different positions, although the element B willremain tightly gripped until the finished package fastener is ready tobe discharged from the machine.

Referring again to Fig. 11 of the drawing, the package fastener elementafter being clamped will be carried downwardly and The element B uponbeing forwardly in the direction of the arrows. When theparticularclampof the assembling mechanism has completed two-thirds of a revolution theassembling operation will be finished and the hooked arm of the bellcrank lever 73 will engage a fixed pin 82- ingjaw 69 being locked in anopen position by the engagement of the hooked end of the bell crank 73with the hooked end 74a of the trip lever 74. The mechanism is now inposition to receive another element B exactly as in the previousinstance.

The element A of the package fastener is simultaneously gripped by asomewhat similar mechanism see Figs. 5, 6 and 10 of the drawing). Whenthe cutter 38 is actuated the trip arm 66 engages a trip lever 84 whichis pivoted at and has a hooked end 84a for engagement witih the hookedend of a bell crank lever 86. This bell crank lever is rigid with ashaft 87 which is arranged parallel to the main shaft 67 and isjournaled in one side of the clamping head 88. The swinging jaw 89 isrigid with the shaft 87, and a coil spring 90 which surrounds the shaftnormally ltends to move the swinging jaw into operative position. Assoon as the trip arm 66 is moved upwardly and trips the lever 84 the jaw(89 is released and swings into operative position, gripping the elementA of the package fastener and holding it against the clamping head 88.This clamping head is pivotally mounted at 91 upon a pair of arms 92which are in turn pivotally mounted at 93 upon wings 94 projecting froma hub 95 on the main shaft 67. These arms 92 have the general directionof the chord of a circle concentric with the main shaft 67, and the twosets of pivots 91 and 93 are both arranged in lines parallel to the axisof the main shaft 67, so that the clamping head 88 can be bodily movedback and forth in a direction parallel to the aXis of the shaft. Thebell crank lever 86 of these clamps for the elements A of the packagefasteners coperate with fixed pins 82 and 83, exactly as in the previousinstance, to release the assembled package fastener and return theswinging jaws and trip elements to their original positions before theunit has been rotated one complete revolution and brought into positionto again receive a package fastener elementA.

A rigid cam ring 96 is arranged at the opposite end of the assemblingdevice and a shoe 97 at one end of the clamping head neeaaea v l 'of themain shaft 67. A suitable spring is lill ` ing the element A is movedlongitudinally provided for normally holding the shoe 97 in a yieldingengagement with the cam 96.

The two elements A and B,of the ackage fastener are thus simultaneouslygrlpped by the two clamps of an assembling unit as theyare severed bythe cutter 38. As the assembling unit is bodily rotated with the mainshaft 67, the roller 79 travels into a low portion of the cam ring 8()and thereby swings the clamping head bodily upon the shaft 76 and brlngsthe |l"shaped head of the-element B into an arched hood 98 carried' byan arm 99 projecting from a hub 100 upon the main shaft 67 (seeFigs. 7and 8). This results in flexing the lateral arms of the T-shaped head ofthe element B so that the. arms extend at substantially right angles tothe body portion of the element B. This position is indicated by Fig.16. The position of the elements A and B when first engaged by the clampis indicatedby Fig. 15. While the element B is held in this position theclamping head 88 carryinto a position opposite the hood 98. Thisposition is vindicated by Fig. 17 and is brought about by the shoe 97riding upon a raised portion 96u of the cam 96. The slots a of theelement A are now directly opposite the bent ends of the 'TF-shaped headof the element B, so that when the clamping head 68 is again swung backinto its original position the lshaped head of the element B will beinterlocked with the slots a: of the element A, this position of theparte being indicated by Fig. 18. The two elements A and B are nowcompletely assembled, and after the element B is released by the jaw 69the complete package fastener is carried by the clamping head 88 as thesame moves back to its original position, this being indicated by Fig.19.

The cam rings 96 and 80 are illustrated by Figs. 20 and 21 in adeveloped form, the clamps or holders moving along the sides of therespective cams in the direction indicated by the arrows. When theelements A and B ofthe fastener are initially gripped the roller 79 ofthe clamping member 68 is at that portion of the cam, ring 80correspending to the left hand end of Fig. 21,*

while the shoe 97 of the other clamping member or holder'88 is atthe'portlon of the cam ring .96 corresponding to the left hand end ofFig. 20. As the carrier upon which the assembling devices are mounted isrotated the shoe 97 travels along a low and straight portion 96b of thecam ring 96 and the element A of the fastener is thus maintained in thesame relation to the element B. At the same time the roller 79` travelsover an inclined portion a of the cam 80 and thereby bodily swings theclamping head 68 into the arched hood 98, with the result that thelateral arms of the l"- shaped head of the fastener element B are flexedinto a position at `substantiall right angles to the body portion of thee ement, this position of the parts being indicated by Fig. 16. vUpon afurther .movement of the rotary carrier the roller 79 travels over a lowand straight portion 80" of the cam 89, with the result that thefastener element B is held in an unchanged position. Durin this periodof time the shoe 97 of the other holder or clamp travels upon aninclined portion 96e of the cam 96 and thereby moves the clamping head88 in a direction allel to the axis of the main shaft 67, br1ng= ing theslotted end of the fastener element A opposite the open side of the hoodwith the slots a thereof in alinement with the flexed wings of the'T-shaped head of the element B. This position is illustrated by Fig.17. Upon a'further movement of the rotary carrier the roller 79travelsover an inclined portion 80c of the cam 80 and thereby swings the clamp68 back toward its original position, with the result that the flexedlateral arms of the 'lV-shaped head of the element B penetrate the slotsa of the element A, the said element A being held in an unchangedposition by the travel of the shoe 97 over the straight and raisedportion 96a of the cam ring 96. The fixed trip pin 82 now releases thejaw 69 of the holder or clamp 68, and the roller 79 travels along anintermediate straight portion 8Od of the cam 80, while the shoe 97travels along an inclined portion 96d of the cam 96 and retracts thecarrier or holder 88 to its original position, the jaw 89 being trippedto release the assembled package fastener which is gripped by adischarge device and deposited upon an endless carrier by means of whichit is conveyed away from the machine. The roller 79 travels over a thirdinclined portion 80e of the cam 80 to a straight raised portion 80fthereof which brings the parts into their original position. During thisfinal stage of the movement the shoe 97 travels over a low portion 90eof the cam 96 which is really a continuation of the low portion 90".When the ends of the two cams are reached one cycle of operation iscompleted and the device is ready to receive an other pair of fastenerelements A and B and 102 from which a reciprocating arm 103 pro- ]ects.

This arm is pivotally connected at 10Av to a plate 105 which is looselymounted all.-

iro

on one end of the shaft 67. A pawl 106 which is carried by this plate ismounted for engagement with a notched disk 107 on the shaft 67. Thereare three notches4 in'the peripher of the disk 107, and each oscillationof t e plate 105 upon the shaft 67 as a center results in rotatlng thenotched disk 107 and shaft 67 exactly one-thirdof a revolution. It willbe recalled that there are three sets of assembling units carried by theshaft 67, so that each one-third of a revolution caused by theoscillation of the plate 105 will bring one unit of assembling elementsinto proper position to receive the fastener elements A and B which aresevered from the end of the paper blank by means of the cutter 38. Apawl 108 is provided for engagement with the notched disk 107 to.prevent over-throw` or too great a movement thereof. A tension spring109 normally tends to swing the 'awl into an inoperative position, whilea tail piece 110 at the pivot end of the pawl is engaged by a finger 111on the plate 105 to swing the pawl 106 into operative position when theplate has reached the limit of its oscillatory motion. The pawl 108 isthus caused to engage one of the notches of the disk 107 at the propertime to lock the disk against further rotation and prevent over-throwthereof.

A lateral arm 112 projects from the plate 105 and is connected by a link113 to an arm 114.- which is rigid with a transverse shaft 115. Theintermediate portion of this shaft 115 is provided with a pair ofL-shaped arms 116 which are connected at their extremltles by atransverse rod 117 extending parallel to the shaft. This rod is providedwith a fixed jaw 118 and also with a movable jaw 119, the latter jawbeing formed at the pivot end thereof with an upwardly extending triparm 120. When the transverse shaft'115 is rotated toswing the elementsthereof toward the machine, the two jaws 118 and 119 receive one of theassembled package fasteners from the assembling mechanism and the saidjaws are forcedinto a closed position and caused to grip the packagefastener by the engagement of the trip arm 120 with a stop 121. Uponrotation of the transverse shaft 115 in the opposite direction the triparm -120 is brought into engagement with a second stop 122 which movesthe jaw 119 of the clamping device into an open position and releasesthe package fastener. The package fastener then drops upon an endlessbelt 123 by means of which it is conveyed away from the machine, saidbelt passing around a roller 124 which receives an intermittent movementfrom the mechanism of the machine. A ratchet wheel 125 is rigid with theshaft 126 of the roller, and is engaged by a pawl 127 on a lever 128which is loose upon the said shaft 126. A pin- 129 at the end of thislever 128 is received within a forked 'nism is thus driven inperfectsynchronism with the cutting and assembling mechanism so that theoperation of the machine is continuous and automatic from start tofinish.

Some means is preferably provided forI locking the movable jaw 119 ofthe discharge clamplng. device in either an open or aclosed position.For this purpose the two jaws 118 and 119 are shown as provided at theirrear ends with the respective extensions 118a and 119, the inner face ofone of the extensions being provided with a resilient projection or head130 which frictionally engages the other extension and thereby holds thejaws in either an open or a closed position, although the position ofthe movable jaw 119 can be readily shifted when the trip arm 120 thereofengages the stop 120 or 121.

In the particular embodiment of the invention which has been illustratedand described for illustrative purposes, the element B of the packagefastener is shown as having a substantially T-shaped formation. It willbe understood, however, that this is not at all essential to theinvention, since the mechanism could be used for manufacturing andassembling package fasteners of this general character of many differentforms and shapes, one of the elements of the package `fastener having atongued head which interlocks with slots in the other element of thepackagefastener. It is entirely within the spirit of the invention touse the device for the manufacture of any device such as a packagefastener comprising two elements which have a detachable andinterlocking tongue and slot connection with each other.

In a machine of this character there is an important advantage derivedfrom the use of the multiple head assembler. With this construction theother parts of the machine can run faster without causing the severalstrips from piling up in the assembler. It requires four or fiveconsecutive motions to assemble a package fastener of this character,and if there were only one assembling unit, these four or five motionswould all have to becompleted before the next set of severed stripscould be fed into the assembler. By providing a plurality of assemblingheads on a rotating drum, each set of severed strips is immediatelymoved out of the way and the actual assembling accomplished while othersets of severed strips are fed to the other assembling heads.

Another important feature of the invention is that the reinforcingthickness is fed into the machine in the form cfa continuous forcing thegummed sheet in spots and simplifies and cheapens the cost ofmanufacture. The reinforcing stri may be of a compara-tively stifl"material), while the gummed strip is of a vcomparatively soft andpliable material so that it will conform to an irregular surface and besusceptible of being securely fastened thereto by the adhesive.

Certain of the principles of my invention find useful employment withoutusing the particular assemblmg means illustrated and described; that isto say-so much of my invention as relates to the novel method of formingreinforced elements for paper package fasteners may be employed whileother and dierent means than that described could be employed fordetachably connecting the complemental or component arts of eachfastener together. Therefor, desire to be understood as covering thenovel features and principles of my invention in any manner in whichthey may be jointly or severally usefully employed. Where l have usedthe word paper in the foregoing specification and annexed claims, l doso in a broad sense, since obviously the package fasteners may be madeof other material, such as cloth or the like. l, therefore, wish to beunderstood as covering such other substitute material, or a combinationof paper and other dissimilar material.

No claim is made to the method of making paper package fastenershereinabove described, as said method is claimed in my copendingapplication, Serial No. 427,483, filed Dec. l, 1920, constituting adivision of thpresent application.

aving thus described the invention, what I claim as new and desire tosecure by Letters Patent, is

l. A machine ofthe character described including a frame, supportingmeans thereon for rolled strips of sheet material, pressure rollers,guide means for directing the strips from the supply rolls to thepressure rollers, means for treating one of the strips to cause thestrips to stick together after passing through the pressure rollers,means for advancing the strips, and means for cutting off successivelengths of the strips, and means for detachably uniting said successivelengths of the strips to form complemental fastener elements.

2. A machine of the character described, including a frame, supportingmeans thereon for two supply rolls of narrow sheet material, pressurerollers, guide means for directing the strips from the supply rolls tothe pressure rollers, means for treating one of the strips to Cause thetwo strips to stick together, means for advancing the strips, means forsevering successive lengths of the strips, and die means for punchingthe strips during their movement through strips from the supply rolls,means for treating one of thestrips so that the two strips will sticktogether, means for advancing the strips, means for longitudinallyslitting the strips, means for severing successive lengths of the slitstrip, and die means for punching the strip durin its passage throughthe machine so that t e severed end portions thereof can be broughttogether in an interlocking relation.

4. A machine of the character described, including a frame, supportingmeans thereon for two supply rolls of narrow sheet material, pressurerollers receivin the strips from the supply rolls, means for treatingone of the strips to cause the two strips to stick together, feedrollers for advancing the strips through the machine, rotary cuttersrigid with the feed rollers for longitudinally slitting the strips,means for severing successive lengths of the slit strips, and die meansfor punching the strips so that the severed portions thereof can bebrought. together and assembled in an interlocking relation.

5. A machine of the characterdescribed, including a frame, supportingmeans thereon for two supply rolls of narrow sheet material, pressurerollers receiving the strips from the supply rolls, means for treatingone of the strips to cause the two. strips to stick together, feedrollers for advancing the strips through the machine, shafts carryingthe feed rollers, coperating cutting disks mounted upon the shafts andlongitudinally slitting the strips, means for intermittently rotatingthe feed rollers, and transverse cutters for severing successive lengthsof the slit strips, and die means operating upon the strips during theperiod of rest between the intermittent movements thereof so that thesevered portions of the strips can be assembled in an interlockingrelation.

6. A machine of the character described, including a frame, supportingmeans thereon for supply rolls of comparatively wide and narrow sheetmaterial, pressure rollers, means for directing the strips of sheetmaterial to the pressure rollers with the narrow strip at the middle ofthe wide strip, means for treating' one of the strips to cause the twostrips to stick together, means for advancing the strips through themachine, means for longitudinally slitting the strips, a transversecutter for severing successive length of the strips, and die meansoperating upon the strips to form sets of parallel slots on one side ofthe slit, the transverse cutterl operating between the sets of slots andintersecting the spaced openings, so that one of the severed elementshas a T-shaped head adapted to be brought into an interlockingconnection with the slots of the other severed element. v

7. A machine of the character described,

'including a frame, supporting means thereon for two supply rolls ofsheet material, one strip of. material being comparatively wide whilethe other strip 1s comparativelyy narrow, pressure rollers, means fordirecting the strips to the pressure rollers with the narrow strip atthe middle of the wide strip, means for treating one of the strips tocause the two strips to stick together, feed rolleres, coperating cutterdisks actuated by the feed rollers to slit the strips longitudinally, amain drive shaft, means actuated by the main drive shaft forintermittently moving the feed rollers, a transverse cutter for severingsuccessive lengths of the slit strips, a die for punching the strips sothat the severed elements can be assembled in an interlocking relation,and means for operating the die and transverse cutter from the mainshaft in synchronism with the feed rollers.

8. A machine of the character described, including a frame, means forsupplying a strip of sheet materialy thereto, means for advancing thestrip of sheet material through the machine, means for slittin the striplongitudinally as it passes througl the machine, a transverse cutter forseveringsuccessive lengths of the slitl strip, and a die for punchingthe strip as it passes through the machine so that the severed elementsare adapted to be assembled in an interlocking relation.

9. A machine of the character described, including means forsimultaneously forming separate and complemental fastener elements whichare adaptedpto have an interlocking connection with each other, andmechanical means receiving the separate fastener elements andautomatically bringing them into an interlocking relation anddischarging them as a unit.

10. A machine of the character described, including means forsimultaneously forming separate and complemental fastener elements, oneof which is slotted and the other of which has Aa T-shaped head, andmechanical means receiving the separate fastener elements andautomatically bringing the T-shaped head of the second mentioned elementinto an interlocking engagement with the slots of the rst mentionedelement, the two elements being discharged as a unit in an interlockedrelation.

11. A machine of the character described, including means for supplyinga strip of sheet material thereto, means for advancing the strip, meansfor slitting the strip longitudinally, a transverse cutter for severing'successive lengths of the strip, die means for punching the strip sothat the severed elements are adapted to have an'interlockin connectionwith each other, and mechanica means receiving the severed elements andautomatically bringingthem into an interlocking relation, said elementsbein discharged as a unit in an interlocked con 'tion.

12. A machine of the character described, including strip advancingmeans, a transverse cutter for severing successive lengths of the strip,means acting upon the strip previous to the action of the cutter for.longitudinally slitting the same so that the severed portion isin twoelements adapted to have an interlocking connection witheach other, andmechanical means receiving the elements and automatically assembling thesame, the elements being discharged asa unit in an interlockingrelation.

13. Avmachine of the character described, including means forsimultaneously forming and delivering complemental fastener elesov mentswhich have an end to end relation" and are adapted to be overlapped andinterlocked, mechanical means receiving the se ai.. rate fastener-elements and automaticaIlly' 14. A machine of the character described,

including separate holders, means for delivering complemental fastenerelements to the respective holders, means for advancing the holders, andmeans for automatically actuating the holders and coperating therewithas they are advanced to bring the fastener elements into an interlockingconnection.

15. A machine of the character described, including separate holders,means for delivering complemental fastener elements to the respectiveholders, means kfor advancing the holders, cams extending along thepaths of the holders, and means actuated by the cams and coperating withthe holders to bring the fastener elements into an interlockingconnection as the holders are advanced.

16.1 A machine of the character described, including a rotary carrier,separate clamps mounted upon the rotary carrler, means for deliveringcomplemental fastener elements to the respective clamps, land meansactuated by the movement of the carrier and coperating with the clampsfor automatically manipulating the fastener elements to bring the sameinto an interlocking conc trolled by the cam rings and coperating withthe clamps to automatically manipulate the fastener elements and bringthe same into an interlocking connection with each other.

18. A machine of the character described, including a rotary carrier,independent clamps thereon, means for delivering complemental fastenerelements to the respective clamps, one element being slotted While theother element has a tongued head, and means for automatically actuatingthe clamps and coperating therewith to flex the wings of the tonguedhead of one element 'and bring them into an interlocking engagement withthe slotsof the other elements as the carrier is rotated, the twoelements being discharged as a unit in an interlocked relation.

19. A machine of the character described, including a carrier, a pair ofindependent holders thereon, means for delivering complemental fastenerelements to the holders, one element being slotted while the otherelement has a tongued head, means actuated by the advance ofthe carrierto flex the wings of the tongued head of the second element, meansactuated by the advance of the carrier to move the first element intoposition with the slots thereof opposite the flexed tongue of the secondelement, and means for further moving the second element toward thefirst element to pass the Hexed tongue thereof through the slots of thefirst element, the two elements being discharged from the machine as aunit in an assembled relation.

20. A machine of the character described, including a rotary carrier,independent holders thereon for receiving complementa] fastenerelements, one element being slotted while the other element has atongued head, cams at the ends of the rotary carrier, means controlledby one of the cams to flex the wings of the tongued head of the secondelement, means controlled by the other cam for moving the first elementinto position with the slots thereof opposite the vflexed wings of thesecond element, and means controlled by the first cam for moving thesecond element toward the first element and passing the flexed armsthrough the slots of the second element, the two elements beingdischarged as a unit in an interlocked condition.

21'. A machine of the character described, including a rotary carrier, apair of separate holders mounted thereon, means for deliveringcomplemental fastener elements to the holders, said elements beinginitially in an end to end relation and one of the elements beingslotted while t-he other element has a tongued head, means actuated bythe advance of the carrier to Hex the wings of the tongued head of thesecond element, and

'tongued head, and means actuated means actuated by the further advanceof the carrier to move the first element bodily into an overlappingrelation with respect to the second element and with the slots thereofin registry with the flexed wings of the second element, said secondmentioned means being actuated by the still further movement of thecarrier for moving the second element toward the rst element to pass theflexed wings through the slots of the second element, the two elementsbeing discharged from the machine as a unit in an interlocked condition.

22. A machine of the character described, including a rotary carrier, apair 'of separate holders adjustably mounted upon the carrier, means fordelivering complemental fastener elements to the holders, said fastenerelements being initially in an end to end relation and one of theelements being.

slotted while the other element has a tongued head, an arched hood uponthe carrier, means actuated by the advance of the carrier to move one ofthe holders and bring the tongued head of the second element into thearched hood, so as to flex the win of the i; a further advance of thecarrier to move the other holder bodily and bring the slotted end of thefirst element opposite the arched hood with the slots thereof inalinement with the flexed wings of the second element, said secondmentioned means being actuated by a still further movement of thecarrier to move the first holder back toward its original position andcause the flexed wings of the second element to enter the slots of thefirst element, the two elements being discharged from the machine as aunit in an interlocked relation.

23. A machine of the character described, including a rotary carrier, apair of separate clamps movably mounted thereon, means for deliveringcomplemental fastener elements to the clamps, one element being slottedwhile the other element has a tongued head, and the elements beinginitially engaged in an end to. end relation, a cam at each end of therotary carrier, an arched hood upon the carrier, means actuated by oneof the cams to swing one of the clamps and bring the tongued head'of thesecond element into the arched hoodso as to fiex the lateral wings ofthe tongued head, and means actuated by the other cam for bodily movingthe other clamp ,in a di rection parallel to the axis of the carrier to'bring the first element in an overlapping relation to the secondelement with the slots thereof in alinement vwith the flexed wings ofthe tongued head, said second mentioned means being actuated by thefirst cam on the further movement of the carrier to swing the firstclampaway from'the arched hood and cause the dexed wings of the list tonguedhead of the second element to enter the slots of the first element, thetwo elements being discharged from the machine as a unit in aninterlocked relation.

24. A machine of the character described, including a rotary carrier, apair of independent clamps movably mounted thereon, one of the clampsbeing mounted to move bodily in a direction parallel to the axis of thecarrier while the other clamp has a transverse swinging movement, meansfor deliverin complemental fastener elements to the c amps, one elementbeing slotted while the other element has a tongued head, said elementsbeing initially in an end to end relation and the first ele-ment beingengaged by the first clamp while the second element v is engaged by thesecond clamp, cams at opposite ends of the carrier, an arched hoodmounted upon the carrier, means actuated by one cam to swing the secondclamp and bring the second fastener element, into the arched hood withthe wings of the tongued head thereof flexed, and means actuated by theother cam for subsequently moving the first clamp and bringing the firstfastener element into an overlapping relation with the second elementwith the slots thereof in registry with the flexed wings of the secondelement, said second mentioned means being subsequently actuated by thefirst mentioned cam to swing the second clamp back to its originalposition and cause the flexed arms of the tongued head of the secondelement to enter the slots of the first element, the two elements beingdischarged from the machine as a unit in an interlocked relation.

25. A machine of the character described, including a rotary carrier, apair of separate spring actuated clamps mounted upon the carrier, feedmeans for delivering complemental fastener elements to the clamps, saidelements being constructed to have an interlocking relation with eachother, trip means for causing the clamps to engage the elements, meansactuated by the-forward movement of the carrier to manipulate the clampsand cooperate therewithto bring the complemental fastener elements intoan interlocking relation, and means for releasing the fastener elementsand resetting the spring clamps, the fastener elements being dischargedas a unit in an interlocked relation.

26. A machine of the character described, including a rotary carrier, apair of spring clamps thereon, trip levers for locking the clamps in anopen position, means for delivering complemental fastener elements tothe open clamps, said elements being formed to have an interlockingengagement with each other, trip means for actuating the trip levers torelease the clamps and cause them to grip the fastener elements, meansactuatments bein discharged as a unit in an interlookin re ation.

27. machine of the character described, including .strip supply means,means for advancing the strip, a transverse cutter for severinglsuccessive lengths of the strip, means for longitudinally slitting thestrip prior to the action of the cutter so that the severed portion willconstitute complemen` tal fastener elements adapted to have aninterlocking relation, a rotary carrier, a pair of spring clamps mountedupon the carrier, trip levers for holding the spring clamps in an openposition, means actuated by the before mentioned cutter to: move thetrip levers and release the clamps so that the severed elements of thestrip are gripped by the clamps, means actuated by the forward movementof the carrier to manipulate the clamps and coperate therewith to bringthe fastener elements into an interlocking relation, and means fordischarging the fastener elements and resetting the spring clamps andtrip levers, the fastener elements bemg discharged as a unit in anassembled relation.

28. A machine of the character described, including means forsimultaneously forming separate and complemental fastener elements whichare adapted to have an interlocking connection with each other,assembling means receiving the said separate fastener elements andautomatically bringing them into an interlocking relation, and dischargemeans receiving the assembled fasteners from the assembly means.

29. A machine of the character described, including a rotary carrier,independent holding means upon the carrier, means for deliveringcomplemental fastener elements to the holding means, means actuated bythe forward movement of the carrier to manipulate the holding means andcoperate therewith to bring the fastener elements into an interlockingrelation, a swinging frame movable toward and away from the carrier,gripping means on the swinging frame for engaging the assembled fastenerelements, and means for causing the gripping element to engage thefastener element when swung toward the carrier and to release the samewhen swung away from the carrier.

30. A machine of the character described, including a rotary carrier,independent holding means on the carrier, means for deliverlngcomplemental fastener elements to the holding means, means actuated bythe forward movement vof the carrier to manipulate the holding means andcooperate there- Ato with to assemble the fastener elements in aninterlocking relation, a swinging frame movable toward and way from theparrier, gripping means on the frame, means for rendering the grippingvmeans operative when the frame is swung toward the carrier andinoperative when swung away from the carrier, and means for' operatingthe carrier and swinging the frame in synchronism with each other. e

3l. A'machine of the character described, including strip feeding means,a cutter for severing' successive lengths of the strip, means forlongitudinally slitting the strip previous to the action of the cutterso that the severed portion thereof will constitute complementalfastener elements adapted to interlock with each other, a rotarycarrier, means upon the carrier for gripping the fastener elements andbringing them into an interlocking relation, discharge means receivingthe assembled fastener elements and depositing them away from thecarrier, a drive shaft, means operated by the drive shaft for advancingthe strip, operating the cutter, rotating the carrier and moving thedischarge means in synchronism.

32. A machine of the character described, including strip feeding means,a cutter for severing successive lengths of the strip, means forlongitudinally slitting the strip prior to the action of the cutter sothat the severed portion thereof will constitute complemental fastenerelements formed respectively with tongues and slots adapted to interlockwith each other, a carrier, and means upon the carrier for gripping thecomplemental fastener elements and bringing the tongues of one of theelements into engage- K ment with the slots of the other element.

33. A machine of the character described, including strip feed means, acutter for severing successive lengths of the strip, means forlongitudinally slitting the strip prior to the action of the cutter sothat the severed portion thereof will constitute complemental fastenerelements formed respectively with tongues and slots adapted to interlockwith each other, means for gripping the fastener elements and moving thesame into an overlapping relation, means for flexing the tongues of oneof the fastener elements and holding the flexed tongues in valinementwith the slots of the other fastener element, and means for bringing theelements together and causing the flexed tongues to pass through theslots.

34. A machine of the character described, Y

including strip feeding means, a cutter for serving successive lengthsof the strips, means for longitudinally slitting the strip servingsuccessive lengths of the strip prior t0 the action of the cutter sothat the severed fastener thereof will constitute complemental fastenerelements provided respectively with tongues and slots adapted tointerlock with each other, a carrier, means upon the carrier forgripping the fastener elementsA and moving them into a spaced andoverlapping relation, means for flexing the tongues of one of thefastener elements and holding the togues in alinement with the slots ofthe other fastener element, and means for moving the lfastener elementstogether and permitting the flexed tongues of one element to enter theslotsA of the other element.

35. A device for assembling complemental fastener elements formedrespectively with tongues and slots which are adapted to interlock witheach other, including means for gripping the elements and moving theminto a spaced and overlapping relation, means for flexing the tongues ofone of the elements and holding the tongues in registry with the slotsof the adapted to interlock with each other, said' elements beingdelivered to [the device with the ends thereof abutting substantiallyagainsteach other, means for gripping the fastener elements and movingthe initially abutting ends thereof into ar spaced and overlappingrelation, means for flexing the tongues of one of the elements andholding the tongues in registry with the slots, and means for moving thefastener elements to,- gether and permitting the tongues to enter theslots.

37. In a machine of the character described, means for successivelyforming separate and complemental fastener elements and means includinga device acting upon the fastener elements for detachably uniting theminV pairs to form paper package fastener units.

38. In a machine of the character described, the combination of meansfor simultaneously forming separate and complemental fastener elementsfrom reinforced paper and mechanical means for receiving separatefastener elements and detachably uniting the reinforced portions ofpairs of said elements to form paper package fastener units.

39. ln a machine of the character described, the combination of meansfor supporting rolled strips of material, means for uniting the materialof different widths'to form a reinforced strip, pressure rolls foruniting said strips, means acting upon the reinforced strip tosuccessively form therefrom, complemental fastener elements detachablysecured together in pairs to form complete package fastener units.

Ill

